Greek Reporter | Greece Opposition Leader Calls for European Debt Renegotiation Summit New York Times The 38-year-old leftist opposition leader in Greece, who could become its next prime minister on a wave of simmering popular fury over the Greek government's austerity measures, called on Friday for a European summit to ease the crushing debts that ... Greece's Tsipras Seeks to Reassure U.S. Mr. Tsipras Comes to Washington Visiting NY, Tsipras Calls For EU Debt Summit |